AWG7122C是泰克公司的任意波形发生器。任意波形发生器（AWG）是人们用来生成重复或单次电波形的一种电子测试设备。单脉冲波形需要内部或外部触发源，而重复波形则不需要。将波形发生器产生的信号注入到设备中，以便在测试过程中进行分析，查找设备问题或确认正确的操作。
附加功能：
应用领域
无与伦比的性能
性能任意波形生成的需求非常广泛，涉及范围广泛的应用。业界领先的AWG7000系列任意波形发生器（AWG）代表了性能，采样率，信号保真度和时序分辨率方面的最先进基准。在设计和测试过程中，创建，生成或复制理想，失真或“真实”信号的能力至关重要。AWG7000系列AWG具有高达24 GS / s和10位垂直分辨率，可提供行业最佳的信号激励解决方案，以应对不断增加的测量挑战。这样可以轻松生成非常复杂的信号，包括对信号特性的完全控制。
通过增加以下关键功能，进一步增强了AWG7000系列的功能：
公式编辑器
公式编辑器是一个ASCII文本编辑器，它使用文本字符串通过加载，编辑和编译公式文件来创建波形。该编辑器提供控制和灵活性，可以使用客户定义的参数创建更复杂的波形。
波形排序和子排序
实时排序可创建无限的波形循环，跳转和条件分支，以生成更长的码型长度，适合复制串行发送器的实际行为。
动态跳跃
动态跳转功能通过启用动态跳转到波形序列中任何预定义索引的功能，可以创建复杂的波形。用户最多可以定义256个不同的跳转索引，以响应不断变化的外部环境。
LXI C级
使用LXI Web界面，只需在浏览器的地址栏中输入AWG的IP地址，即可通过标准的Web浏览器连接到AWG7000系列。通过Web界面可以查看仪器状态和配置，以及网络设置的状态和修改。所有的网络交互都符合LXI C类规范。
宽带射频信号生成
创建RF信号变得越来越复杂，使RF工程师更加难以准确创建一致性和裕度测试所需的信号。当与RFXpress结合使用时，AWG7000系列可以解决这些艰巨的设计挑战。RFXpress是一个软件包，可以通过充分利用AWG7000系列任意波形发生器（AWG）的宽带信号生成功能，对合成的基带，IF和RF信号进行数字合成，从而将信号生成提升到新的水平。AWG7000和RFXpress共同为工程师提供“按需带宽”，即能够在9.6 GHz频率范围内的任何地方生成高达5.3 GHz（–3 dB）的宽带调制信号。
由于需要生成宽带和快速变化的信号，因此最新的数字RF技术通常超过其他测试仪器的能力，而在许多RF应用中，如雷达，RF通信，OFDM和UWB，这种信号越来越多地出现。当与RFXpress结合使用时，AWG7000系列支持多种调制格式，并简化了创建复杂RF波形的任务。AWG7000系列仪器为客户提供了生成完全调制的基带，中频（IF）信号或直接生成的RF波形的方法。
雷达信号创建
生成高级雷达信号通常需要AWG在采样率，模拟带宽和内存方面的出色性能。泰克AWG7000系列通过提供高达5.3 GHz（–3 dB）的宽调制带宽，为高级雷达信号生成树立了新的行业标准。AWG7000系列具有高达24 GS / s的采样率，可以直接生成RF信号，在可能的情况下，从AWG开始。在需要生成IQ的情况下，AWG7000可以对信号进行过采样，从而提高信号质量。
AWG7000和RFXpress是创建复杂雷达信号的理想解决方案。为客户提供创建定制的雷达脉冲套件的最大灵活性。使用AWG可以轻松创建LFM，Barker和Polyphase码，Step FM和Nonlinear FM等调制类型，RFXpress的灵活性使得可以创建需要客户定义的调制类型的波形。AWG和RFXpress组合还具有生成具有交错PRI的脉冲序列以解决范围和多普勒模糊性，电子反计数措施（ECCM）的跳频以及脉冲间幅度变化以模拟包括天线在内的Swerling目标模型的能力。扫描图案，杂波和多径效果。
环境信号产生
雷达信号必须与共享相同频谱的其他商业标准信号共存，并且仍有望在不降低性能的情况下运行。鉴于其关键任务操作，这并非不合理。为了满足这一期望，雷达设计人员必须在设计/调试阶段彻底测试所有极端情况。AWG7000和RFXpress Environment插件为定义和创建这些最坏情况提供了极大的灵活性。
您最多可以指定25个信号来定义您的环境，包括WiMAX，WiFi，GSM，GSM-EDGE，EGPRS 2A，EGPRS2B，CDMA，W-CDMA，DVB-T，Noise和CW Radar。该插件还允许您将来自其他RFXpress插件（包括Radar，Generic Signal等）以及Matlab®以及Tektronix频谱分析仪和示波器的信号无缝导入到您的环境中。您还可以配置特定于标准信号的PHY参数。您可以定义环境中所有信号的载波频率，功率，开始时间和持续时间，因此可以完全控制这些信号相互影响/干扰的方式。
通用OFDM创建
在当今的无线世界中，OFDM正在成为在短距离和中等距离上传输大量数字数据的首选调制方法。对宽带宽和多载波的需求给需要创建OFDM信号以测试其RF接收机的工程师带来了挑战。与RFXpress结合使用时，AWG7000系列允许用户配置OFDM信号定义的每个部分。工程师可以逐个符号地构建信号以创建完整的OFDM帧，或者让RFXpress软件为某些信号方面选择默认值。AWG / RFXpress组合支持多种数据编码格式，包括Reed Solomon，卷积和加扰。用户还可以定义符号中的每个子载波，这些子载波可以针对类型，调制和基本数据进行独立配置。RFXpress软件通过提供符号表来提供对OFDM信号所有方面的可见性，该符号表提供了所选符号中所有载波的摘要。可以通过指定符号/帧之间的间隔来构建OFDM数据包/帧，并且可以通过添加门控噪声来强调OFDM数据包的各个部分。
UWB-WiMedia（UWBCF / UWBCT）
超宽带（UWB）无线是一项不断发展的技术，专为低功率，短距离无线应用而设计。UWB已成为无线通用串行总线（USB）等应用程序的领先技术。与通用OFDM无线电一样，UWB无线电也需要宽信号带宽和多个载波，但是UWB设计还需要短时脉冲并在热本底噪声附近传输功率谱密度（PSD），这会非常难以创建UWB测试信号。幸运的是，AWG7000系列和RFXpress为生成UWB测试信号提供了可靠的解决方案。
AWG7000和RFXpress能够数字合成并生成UWB频谱中的信号。对于定制的UWB信号或为最新的WiMedia规范定义的信号，AWG7000解决方案可以重新创建在1.6 GHz调制带宽上实时进行跳频所需的信号。RFXpress软件使用户可以完全控制其UWB信号的特性，包括前同步码同步序列，覆盖序列和TFC。对于WiMedia应用，可以在IQ，IF或直接RF信号中生成所有六个频段组（BG1至BG6），为用户提供3种使用AWG7000仪器创建/上变换信号的选项。
高速串行信号生成
串行信号完全由简单的1和0（二进制数据）组成。过去，工程师曾使用数据生成器来创建数字信号。随着时钟速率的增加，这些简单的1和0开始看起来更像模拟波形，因为嵌入数字数据中是模拟事件。零上升时间和教科书数字信号的完美平顶不再代表现实。电子环境具有噪声，抖动，串扰，电抗分布，电源变化以及其他缺点。每个人都要为信号付出代价。现实世界中的数字“方波”很少类似于理论上的方波。由于AWG7000系列是模拟波形源，因此它是完美的单盒解决方案，可用于创建数字数据流并模拟现实环境中出现的模拟缺陷。AWG7000系列使用直接合成技术，使工程师可以创建体现通过传输线传播的信号。上升时间，脉冲形状，延迟和像差都可以通过AWG7000系列仪器进行控制。当与SerialXpress软件包一起使用时，工程师可以控制其数字信号的各个方面，达到最高6 Gb / s的速度。这正是严格的接收机测试要求所需要的。AWG7000系列使用直接合成技术，使工程师可以创建体现通过传输线传播的信号。上升时间，脉冲形状，延迟和像差都可以通过AWG7000系列仪器进行控制。当与SerialXpress软件包一起使用时，工程师可以控制其数字信号的各个方面，达到最高6 Gb / s的速度。这正是严格的接收机测试要求所需要的。AWG7000系列使用直接合成技术，使工程师可以创建体现通过传输线传播的信号。上升时间，脉冲形状，延迟和像差都可以通过AWG7000系列仪器进行控制。当与SerialXpress软件包一起使用时，工程师可以控制其数字信号的各个方面，达到最高6 Gb / s的速度。这正是严格的接收机测试要求所需要的。
SerialXpress是一个集成的软件工具，使AWG7000系列仪器能够创建各种数字数据损伤，例如抖动（随机，周期性，正弦波），噪声，预加重/去加重，占空比失真，符号间干扰（ISI），占空比失真（DCD）和扩频时钟（SSC）。可以使用上传到SerialXpress的试金石文件来仿真板和电缆的传输环境。AWG7000和SerialXpress解决方案还为当今的许多高速串行应用（如SATA，显示端口，SAS，PCI-E，USB和光纤通道）提供基本模式波形。对于高速串行应用，AWG7000系列提供了业界最佳的解决方案，以解决数字设计师需要验证，表征，并调试复杂的数字设计。基于文件的体系结构使用直接合成来创建复杂的数据流，并为用户提供解决高速串行通信应用中最棘手的信号生成挑战所需的简单性，可重复性和灵活性。
The AWG7122C is an Arbitrary Waveform Generator from Tektronix. An arbitrary waveform generator (AWG) is a type of electronic test equipment people use to generate repetitive or single-shot electrical waveforms. Single-shot waveforms require a triggering source, either internal or external, while repetitive waveforms do not. Inject the signal the waveform generator creates into a device for analysis during testing, finding problems with the device, or confirming proper operation.
Additional Features:
Applications
Unparalleled Performance
The need for performance arbitrary waveform generation is broad and spans over a wide array of applications. The industry-leading AWG7000 Series arbitrary waveform generators (AWG) represent a cutting edge benchmark in performance, sample rate, signal fidelity, and timing resolution. The ability to create, generate, or replicate either ideal, distorted, or “real-life” signals is essential in the design and testing process. The AWG7000 Series of AWGs, with up to 24 GS/s and 10-bit vertical resolution, delivers the industry's best signal stimulus solution for ever-increasing measurement challenges. This allows for easy generation of very complex signals, including complete control over signal characteristics.
The capabilities of the AWG7000 Series are further enhanced by the addition of key features:
Equation Editor
The Equation Editor is an ASCII text editor that uses text strings to create waveforms by loading, editing, and compiling equation files. The editor provides control and flexibility to create more complex waveforms using customer-defined parameters.
Waveform Sequencing and Subsequencing
Real-time sequencing creates infinite waveform loops, jumps, and conditional branches for longer pattern-length generation suitable for replicating real-world behavior of serial transmitters.
Dynamic Jump
The Dynamic Jump capability enables the creation of complex waveforms by enabling the ability to dynamically jump to any predefined index in a waveform sequence. Users can define up to 256 distinct jump indexes that respond to changing external environments.
LXI Class C
Using the LXI Web Interface, you can connect to the AWG7000 Series through a standard web browser by simply entering the AWG's IP address in the address bar of the browser. The web interface enables viewing of instrument status and configuration, as well as status and modification of network settings. All web interaction conforms to the LXI Class C specification.
Wideband RF Signal Generation
Creating RF signals is becoming more and more complex, making it more difficult for RF engineers to accurately create the signals required for conformance and margin testing. When combined with RFXpress, the AWG7000 Series can address these tough design challenges. RFXpress is a software package that digitally synthesizes modulated baseband, IF, and RF signals taking signal generation to new levels by fully exploiting the wideband signal generation capabilities of the AWG7000 Series arbitrary waveform generators (AWGs). Together the AWG7000 and RFXpress provide engineers with “bandwidth on demand”, which is the ability to generate wideband modulated signals up to 5.3 GHz (–3 dB) anywhere within the 9.6 GHz frequency range.
The latest digital RF technologies often exceed the capabilities of other test instruments because of the need to generate the wide-bandwidth and fast-changing signals that are increasingly seen in many RF applications such as radar, RF comms, OFDM, and UWB. When used in conjunction with RFXpress the AWG7000 Series supports a wide range of modulation formats and simplifies the task of creating complex RF waveforms. The AWG7000 Series instruments provide customers with ways to generate fully modulated baseband, intermediate frequency (IF) signals, or directly generated RF waveforms.
Radar Signal Creation
Generating advanced radar signals often demands exceptional performance from an AWG in terms of sample rate, analog bandwidth, and memory. The Tektronix AWG7000 Series sets a new industry standard for advanced radar signal generation, by delivering wide modulation bandwidths up to 5.3 GHz (–3 dB).With a sample rate of up to 24 GS/s the AWG7000 Series can directly generate RF signals never before possible from an AWG. In instances where IQ generation is desired, the AWG7000 offers the ability to oversample the signal, thereby improving signal quality.
The AWG7000 and RFXpress are the perfect solution for creating complex radar signals. Customers are provided with the ultimate flexibility in creating custom radar pulse suites. Modulation types such as LFM,Barker and Polyphase Codes, Step FM, and Nonlinear FM are easily created using the AWG, and the flexibility of RFXpress enables the creation of waveforms requiring customer-defined modulation types. The AWG and RFXpress combo also has the ability to generate pulse trains with staggered PRI to resolve range and doppler ambiguity, frequency hopping for Electronic Counter-Counter Measures (ECCM), and pulse-to-pulse amplitude variation to simulate Swerling target models including antenna scan patterns, clutter, and multipath effects.
Environment Signal Generation
Radar signals must coexist with other commercial standard signals sharing the same spectrum and are still expected to perform with no performance degradation. This isn't unreasonable given its mission-critical operations. To meet this expectation, a radar designer has to thoroughly test all the corner cases at the design/debug stage. The AWG7000 and RFXpress Environment plug-in offers extreme flexibility to define and create these worst-case scenarios.
You can specify up to 25 signals to define your environment, including WiMAX, WiFi, GSM, GSM-EDGE, EGPRS 2A, EGPRS2B, CDMA, W-CDMA, DVB-T, Noise, and CW Radar. This plug-in also allows you to seamlessly import signals from other RFXpress plug-ins (including Radar, Generic Signal, etc.), as well as from Matlab® and from Tektronix spectrum analyzers and oscilloscopes, into your environment. You can also configure PHY parameters of your standard-specific signals. You can define the carrier frequency, power, start time, and duration for all the signals in your environment, so you have full control over the way these signals interact/interfere with each other.
Generic OFDM Creation
In today's wireless world, OFDM is becoming the modulation method of choice for transmitting large amounts of digital data over short and medium distances. The need for wide bandwidths and multiple carriers create challenges for engineers who need to create OFDM signals to test their RF receivers. The AWG7000 Series, when coupled with RFXpress, allows users to configure every part of the OFDM signal definition. Engineers can build signals symbol-by-symbol to create a complete OFDM frame or let the RFXpress software choose default values for some signal aspects. The AWG/RFXpress combo supports a variety of data coding formats that include Reed Solomon, Convolution, and Scrambling. Users also have the ability to define each subcarrier in the symbol which can be configured independently for type, modulation, and base data. The RFXpress software gives visibility into all aspects of the OFDM signal by providing a symbol table that gives a summary of all the carriers in the selected symbol. OFDM packets/frames can be built by specifying the spacing between the symbols/frames and parts of the OFDM packets can be stressed by adding gated noise.
UWB-WiMedia (UWBCF/UWBCT)
Ultra-Wideband (UWB) wireless is a growing technology that is designed for low-power, short-range wireless applications. UWB has emerged as the leading technology for applications like wireless Universal Serial Bus (USB). UWB radios, like generic OFDM radios, require wide signal bandwidths and multiple carriers, but UWB designs also require short-duration pulses and transmit Power Spectral Densities (PSDs) near the thermal noise floor which can make creating UWB test signals very difficult. Fortunately, the AWG7000 Series and RFXpress offer a solid solution for the generation of UWB test signals.
The AWG7000 and RFXpress have the capability to digitally synthesize and generate signals in the UWB spectrum. For either custom UWB signal or ones defined for the latest WiMedia specification, the AWG7000 solution can recreate signals that are required to band hop in real time over a 1.6 GHz modulation bandwidth. The RFXpress software gives users complete control over the characteristics of their UWB signals including the preamble synchronization sequences, cover sequences, and TFCs. For WiMedia applications all six band groups (BG1 to BG6) can be generated in either IQ, IF, or direct RF signals, giving users 3 different options for creating/up-converting the signals when using an AWG7000 instrument.
High-speed Serial Signal Generation
Serial signals are made up entirely of simple ones and zeros – binary data. Historically engineers have used data generators to create digital signals. As clock rates have increased these simple ones and zeros have begun to look more like analog waveforms because embedded in the digital data are analog events. The zero rise time and the perfectly flat tops of textbook digital signals no longer represent reality. Electronic environments have noise, jitter, crosstalk, distributed reactances, power supply variations, and other shortcomings. Each takes its toll on the signal. A real-world digital “square wave” rarely resembles its theoretical counterpart. Since the AWG7000 Series is an analog waveform source it is the perfect single-box solution that is used to create digital data streams and mimic the analog imperfections that occur in real-world environments. The AWG7000 Series uses direct synthesis techniques which allow engineers to create signals that embody the effects of propagation through a transmission line. Rise times, pulse shapes, delays, and aberrations can all be controlled with the AWG7000 Series instruments. When used in conjunction with the SerialXpress software package, engineers are provided control over every aspect of their digital signals reaching speeds of up to 6 Gb/s. This is exactly what is needed for rigorous receiver testing requirements.
SerialXpress is an integrated SW tool that enables AWG7000 Series instruments to create a variety of digital data impairments such as jitter (Random, Periodic, Sinusoidal), noise, pre/de-emphasis, duty cycle distortion, Inter-symbol Interference (ISI), Duty Cycle Distortion (DCD), and Spread Spectrum Clocking (SSC). The transmission environments of both board and cables can be emulated using touchstone files uploaded into SerialXpress. The AWG7000 and SerialXpress solution also provides base pattern waveforms for many of today's high-speed serial applications such as SATA, Display Port, SAS, PCI-E, USB, and Fibre Channel. For high-speed serial applications the AWG7000 Series offers the industry's best solution for addressing challenging signal stimulus issues faced by digital designers who need to verify, characterize, and debug complex digital designs. The file-based architecture uses direct synthesis to create complex data streams and provides users with the simplicity, repeatability, and flexibility required to solve the toughest signal generation challenges in high-speed serial communication applications.
Copyright © 2007 All Rights Reserved. 深圳市晧辰电子科技有限公司 版权所有 [粤ICP备14101712号-1] [法律顾问]
公司地址：广东省深圳市南山区西丽街道官龙村华纵科技楼5楼 邮编：518055
在线QQ服务：
服务热线：0755－86016691 电话：13715327187 传真：0755-86641139-816
E-mail：info@wl95.com
